公开(公告)号：JP2012085475A

公开(公告)日：2012-04-26

申请号：JP2010230992

申请日：2010-10-13

Applicant: Merstech Inc ,  Nippon Steel Corp ,  新日本製鐵株式会社 ,  株式会社MERSTech

Inventor： FUKUDA SHIRO ,  SONOBE TADASHI ,  KATO SHUHEI

IPC: H02P27/16 ,  H02P1/28

Abstract: PROBLEM TO BE SOLVED: To provide an induction motor control device for controlling an induction motor so as to stably operate it.SOLUTION: Magnetic Energy Recovery Switches 100u, 100v, and 100w generate a voltage equivalent to one obtained by fluctuating the phase of a voltage generated by AC power supply VS by a value θset, and impress a voltage equivalent to the sum of the voltage and the voltage generated by the AC power supply VS on an induction motor M. A control part 200 determines the θset so that the effective value of the fundamental wave component of a load voltage detected by a voltage detecting part VM converges to a prescribed value, and determines timing of transition of each gate signal based on the θset value to supply the signal to each Magnetic Energy Recovery Switch.

Abstract translation: 要解决的问题：提供一种用于控制感应电动机以使其稳定运行的感应电动机控制装置。 解决方案：磁能恢复开关100u，100v和100w产生相当于通过使由AC电源VS产生的电压的相位波动值θset得到的电压，并且施加相当于 电压和由感应电动机M上的交流电源VS产生的电压。控制部200确定θset，使得由电压检测部VM检测出的负载电压的基波分量的有效值收敛于规定值 并且基于θset值确定每个门信号的转换时序，以向每个磁能恢复开关提供信号。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2011147300A

公开(公告)日：2011-07-28

申请号：JP2010007508

申请日：2010-01-15

Applicant: Merstech Inc ,  株式会社MERSTech

Inventor： KITAHARA TADAYUKI ,  FUKUDA SHIRO

IPC: H02M7/48 ,  H02P27/08 ,  H05B6/06

CPC classification number: H02M3/158 ,  H02M2001/008 ,  H02M2003/1555 ,  H02P27/08 ,  H05B6/06

Abstract: PROBLEM TO BE SOLVED: To provide a power inverter which can supply power in parallel to a plurality of loads from a single power supply, has small circuit scale and can adjust the supplied power. SOLUTION: A power inverter 1 is composed of a plurality of driving circuits 10i connected in parallel with a DC power supply 2. Each of the driving circuits 10i includes: a DC reactor Ldci connected to the DC power supply 2 in series; a magnetic energy regeneration switch Bi including a plurality of reverse conducting semiconductor switches SWUi, SWVi, SWYi, SWXi having DC input ends to which a series circuit of the DC power supply 2 and the DC reactor Ldci and a capacitor CMi are connected and AC output ends to which a load LDi is connected; and a control circuit 13i. The control circuit 13i turns on and off the reverse conducting semiconductor switches SWUi, SWVi with a duty ratio of 0.5, and adjusts the duty ratio of the reverse conducting semiconductor switches SWYi, SWXi to 0.5 or less. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：为了提供能够从单个电源并联供给多个负载的电力的电力逆变器，具有小的电路规模并且可以调节所供电的功率。 解决方案：电力逆变器1由与直流电源2并联连接的多个驱动电路10i组成。每个驱动电路10i包括：串联连接到直流电源2的直流电抗器Ldci; 具有直流电源2和直流电抗器Ldci的串联电路和电容器CMi的DC输入端的多个反向导通半导体开关SWUi，SWVi，SWYi，SWXi的磁能再生开关Bi连接，AC输出 连接负载LDi的端部; 和控制电路13i。 控制电路13i以占空比为0.5的方式导通和关断反向导通半导体开关SWUi，SWVi，并将反向导通半导体开关SWYi，SWXi的占空比调整至0.5以下。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2011147277A

公开(公告)日：2011-07-28

申请号：JP2010006311

申请日：2010-01-14

Applicant: Merstech Inc ,  株式会社MERSTech

Inventor： KITAHARA TADAYUKI ,  FUKUDA SHIRO

IPC: H02M3/155

Abstract: PROBLEM TO BE SOLVED: To bidirectionally convert power between different DC voltages.
SOLUTION: A series circuit of a low-voltage battery 11 and a first reactor L1 is connected to a first alternating current terminal AC1 of an MERS (magnetic energy recovery switch) 100. A capacitor CC is connected between DC terminals DCP and DCN of the MERS 100. A high-voltage battery 12 is connected to a second alternating current terminal AC2 of the MERS 100 via a second reactor L2, a fifth switch SW, and low-pass filters L3, C3. In charging the high-voltage battery 12 from the low-voltage battery 11, a control circuit 13 synchronously switches the second and third switches SW2, SW3, and in charging the low-voltage battery 11 from the high-voltage battery 12, the control circuit 13 always turns on the fifth switch SW and switches the first switch SW1.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：双向转换不同直流电压之间的功率。 解决方案：低压电池11和第一电抗器L1的串联电路连接到MERS（磁能回收开关）100的第一交流端子AC1。电容器CC连接在DC端子DCP和 MERS100的DCN。高电压电池12经由第二电抗器L2，第五开关SW和低通滤波器L3，C3连接到MERS 100的第二交流端子AC2。 在从低电压电池11对高压电池12充电时，控制电路13同步地切换第二和第三开关SW2，SW3，并从低电压电池12对低电压电池11充电，控制 电路13总是打开第五开关SW并切换第一开关SW1。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：DE112008004182T5

公开(公告)日：2012-03-15

申请号：DE112008004182

申请日：2008-11-13

Applicant: MERSTECH INC

Inventor： FUKUDA SHIRO

IPC: H02M1/32

Abstract: Ein Magnetenergie-Rückgewinnungsschalter mit Schutzschaltung, der einen Magnetenergie-Rückgewinnungsschalter umfasst, der mindestens zwei rückwärts leitende Halbleiterschalter und zwei Kondensatoren aufweist, wendet eine Schutzschaltung und ein Steuerverfahren zum Schutz der Kondensatoren gegen eine Überspannungs- oder Kurzschlussentladung und zum Schutz der rückwärts leitenden Halbleiterschalter und einer Last gegen eine Überspannung oder einen Überstrom an, und kann als Steuerung oder Strombegrenzer verwendet werden.